Alcohol container labels (ACL) may reduce population alcohol harms, but investigations of their effectiveness have varied in approach and quality. This PHO Rounds will present our research and objectives, which included establishing the effects of ACL with health warnings, standard drink information and low risk drinking guidance. We then explore the subsequent impacts on alcohol use, knowledge of alcohol risks and support for labels.

We performed a systematic review according to Cochrane standards, and included all peer-reviewed studies and grey literature published Jan 1989 to March 2024, which investigated the effects of ACL on behaviours, knowledge, or support. Data were synthesized narratively as impact statements and assessed for risk of bias and certainty in the evidence. Results suggest ACL may influence some consumption behaviours, with those bearing multiple types of rotating messages being particularly effective, though effects may vary depending on individual health literacy or consumption behaviour. ACL may therefore, be an effective component of policy to address population alcohol harms.